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https://issues.apache.org/jira/browse/SOLR-12159?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joel Bernstein updated SOLR-12159:
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Attachment: SOLR-12159.patch
> Add memset Stream Evaluator
> ---------------------------
>
> Key: SOLR-12159
> URL: https://issues.apache.org/jira/browse/SOLR-12159
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Joel Bernstein
> Priority: Major
> Fix For: 7.4
>
> Attachments: SOLR-12159.patch
>
>
> The *memset* function will copy multiple numeric arrays into memory from
> fields in an underlying TupleStream. This will be much more memory efficient
> then calling the *col* function multiple times on an in-memory list of
> Tuples. Sample syntax:
> {code:java}
> let(a=memset(random(collection1, q="*:*", fl="field1, field2", rows=50000),
> copy="field1, field2",
> vars="c, d"),
> e=corr(c, d))
> {code}
>
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